Japanese grammar is logical once you see the system. Work through these sections in order — particles first, then verb forms, then patterns.

助 Particles は・が・を・に・で and more — when and why. 動 Verb Forms Conjugation tables — る-verbs, う-verbs, irregular. 文 Sentence Patterns 50 key patterns with examples you can hear. 試 Sentence Quiz English → Japanese. Can you pick it?

How Japanese sentences work

Japanese is a Subject–Object–Verb language. The verb always goes at the end.

English (SVO) Japanese (SOV)
I eat sushi. 私は寿司を食べます。
She reads books. 彼女は本を読みます。
He studies Japanese. 彼は日本語を勉強します。

Three things to get right:

  1. Particles — small words after nouns that show how that noun functions in the sentence (topic, subject, object, location, direction…)
  2. Verb forms — verbs change their ending depending on tense, politeness, and grammatical function
  3. Patterns — fixed structures like 〜たいです (want to do) or 〜ことができます (can do)

Master those three and you can build almost any Japanese sentence.